<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
</head>
<body>
    <form action="/upload" method="post" enctype="multipart/form-data">
        <input type="file" name="f1">
<!--        <input type="file" name="f1">-->
        <input type="submit" name="上传">
    </form>
</body>
</html>